/*-
 * <<
 * DBus
 * ==
 * Copyright (C) 2016 - 2019 Bridata
 * ==
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * >>
 */


package com.creditease.dbus.utils;

import com.creditease.dbus.commons.Constants;
import com.creditease.dbus.commons.IZkService;

import java.util.Properties;

public class SecurityConfProvider {
    private static String SECURITY_PROTOCOL = null;

    public static String getSecurityConf(IZkService zkService) throws Exception {
        if (SECURITY_PROTOCOL == null) {
            synchronized (SecurityConfProvider.class) {
                if (SECURITY_PROTOCOL == null) {
                    String path = Constants.COMMON_ROOT + "/" + Constants.GLOBAL_SECURITY_CONF;
                    if (zkService.isExists(path)) {
                        Properties properties = zkService.getProperties(path);
                        SECURITY_PROTOCOL = properties.getProperty("AuthenticationAndAuthorization");
                    } else {
                        SECURITY_PROTOCOL = "none";
                    }
                }
            }
        }
        return SECURITY_PROTOCOL;
    }
}
